The BJ worm gear screw jack is designed in several different versions and happens to be used in countless solutions within Healthcare, the Food Industry and other industries.

All worm gear screw jacks may since standard be supplied with easy-to-clean and yellow chromated areas with stainless steel spindles and food approved lubricants.
If there are special requirements for the look, we are pleased to offer adaptations also in smaller quantities.

The spindles could be protected from dirt and water by using protecting tubes.

Ball-screw jacks feature a high-efficiency ball screw and nut that reduces the required input torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-metal screw jack are for environments where corrosion level of resistance is essential. Stainless-metal lifting threads are precision shaped to Course 2-C (centralizing) thread profiles.
The look is compact, simple and its modular construction allows great versatility in the decision of gear, installation options, flanges, oil types and surface treatments. The modular style is also ideal when there is a dependence on customisations where the gearbox should be optimized for particular needs. That’s the reason why we are able to produce worm gear screw jacks adapted to your desires at an attractive price.
The worm gear screw jack allows for axial positioning and together with our other products within the field of encoders, couplings and connecting shafts, it allows for running more axial actions synchronously.

By connecting individual screw jacks with drive shafts lifting systems can be realized in a simple way. With the rich accessories many problems can be solved with the standard program.
There are two basic types of screw jacks of which a few additional styles originate. First, there are translating screw jacks. These kinds of screw jacks use a lift shaft or screw that travels into or out from the worm gear package. The lift shaft can either protrude from the mounting flange side of the gearbox or from the very best side of the worm equipment package. Secondly, are rotating type screw jacks. In this style, the lift shaft remains stationary and a lifting nut movements along the lift shaft. Much like the translating screw jacks the screw can also protrude down from the installation flange or up from the very best of the jack. To produce translation of the lift shaft or nut, both configurations must be secured to prevent rotation. Where that is unfeasible, keyed screw jacks are a choice.
Each model’s worm-gear-set arrangement uses an alloy-metal worm, which drives a high-strength bronze worm equipment (drive sleeve). The worm shaft is supported on antifriction tapered roller bearings with external seals to prevent loss of lubrication. Machine-screw jacks feature a lifting shaft made of alloy steel with the very least tensile strength of 95,000 psi. Lead accuracy is approximately 0.004 in./ft.